Question
Question: In an alternating current circuit consisting of elements in series, the current increases on increas...
In an alternating current circuit consisting of elements in series, the current increases on increasing the frequency of supply. Which of the following elements are likely to constitute the circuit?
A
Only resistor
B
Resistor and inductor
C
Resistor and capacitor
D
Only inductor
Answer
Resistor and capacitor
Explanation
Solution
: Reactance of a capacitor,
As frequency increases, 
decreases and therefore current increases. As R does not vary with frequency, therefore, likely elements constituting the circuit may be capacitor and resistor.